London 2012 Olympics

Indeed.
However we won 18 gold medals at a cost of £10m EACH.
A new academy type school built in London is £30m
Half that on a green field site.
60 - 120 new schools

Just sayin.

18 x 10m = 180m

6 x 30m = 180m

So, 6 new schools. With maths classes and stuff.